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Completely Disable Wordpress Comments (add to functions.php)
<?php
// Disable support for comments and trackbacks in post types
function df_disable_comments_post_types_support() {
$post_types = get_post_types();
foreach ($post_types as $post_type) {
if(post_type_supports($post_type, 'comments')) {
remove_post_type_support($post_type, 'comments');
remove_post_type_support($post_type, 'trackbacks');
}
}
}
add_action('admin_init', 'df_disable_comments_post_types_support');
// Close comments on the front-end
function df_disable_comments_status() {
return false;
}
add_filter('comments_open', 'df_disable_comments_status', 20, 2);
add_filter('pings_open', 'df_disable_comments_status', 20, 2);
// Hide existing comments
function df_disable_comments_hide_existing_comments($comments) {
$comments = array();
return $comments;
}
add_filter('comments_array', 'df_disable_comments_hide_existing_comments', 10, 2);
// Remove comments page in menu
function df_disable_comments_admin_menu() {
remove_menu_page('edit-comments.php');
}
add_action('admin_menu', 'df_disable_comments_admin_menu');
// Redirect any user trying to access comments page
function df_disable_comments_admin_menu_redirect() {
global $pagenow;
if ($pagenow === 'edit-comments.php') {
wp_redirect(admin_url()); exit;
}
}
add_action('admin_init', 'df_disable_comments_admin_menu_redirect');
// Remove comments metabox from dashboard
function df_disable_comments_dashboard() {
remove_meta_box('dashboard_recent_comments', 'dashboard', 'normal');
}
add_action('admin_init', 'df_disable_comments_dashboard');
// Remove comments links from admin bar
function df_disable_comments_admin_bar() {
if (is_admin_bar_showing()) {
remove_action('admin_bar_menu', 'wp_admin_bar_comments_menu', 60);
}
}
add_action('init', 'df_disable_comments_admin_bar');
@andredewaard
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andredewaard commented Nov 14, 2017

To hide the comment icon in the admin bar.

add_action( 'admin_bar_menu', 'clean_admin_bar', 999 );
function clean_admin_bar( $wp_admin_bar ) {
    $wp_admin_bar->remove_node( 'comments' );
}

@Nerdies24
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Nerdies24 commented Jul 7, 2020

It also turns off the rating function in Woocommerce.

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